<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head lang="en">
    <meta charset="UTF-8">
    <title>文件上传</title>
    <link rel="stylesheet" href="css/bootstrap.min.css"/>
    <script src="js/jquery.js"></script>

</head>
<body>
<div th:if="${uploadStatus}" style="color: red" th:text="${uploadStatus}">
    上传成功
</div>
<!--enctype="multipart/form-data 表示 多部件的 多媒体类型-->
<form action="/uploadFile" method="post" enctype="multipart/form-data">
    上传文件:&nbsp;&nbsp;
    <input type="button" value="添加文件" onclick="add()"/>
    <div id="file" style="margin-top: 10px;" th:value="文件上传区域"></div>
    <input id="submit" type="submit" value="上传"
           style="display: none;margin-top: 10px;"/>
</form>

<script type="text/javascript">
    function add() {
        var innerdiv = "<div>";
        innerdiv += "<input type='file' name='fileUpload' required='required'>" +
            "<input type='button' value='删除' onclick='remove(this)'>";
        innerdiv += "</div>";
        $("#file").append(innerdiv);
        $("#submit").css("display", "block");
    }


    function remove(obj) {
        $(obj).parent().remove();
        if ($("#file div").length == 0) {
            $("#submit").css("display", "none");
        }
    }


</script>

</body>
</html>